Improvement in harvesters



initrd Staten .naar canrRnsToN lA.

TOBEY, OF OATON, NEW YORK. rASSIGNOR FOR ONE-HALF TO STEPHEN TOBEY, OF SAME PLACE.

Leners Patent No. 100,817, zaad Mam. 15, 1870.

IMPROVEMENT IN HARVESTERS.

1 The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may concern:

Nature of the Invention. This improvement is in the method of transmitting power from the driving-wheel ttbe knives, and is of that class where gearingiis dispensed withaud theV action produced by a spring slide which connects witl cam-teeth on thcwheel.

The invention consists-essentially in providing the "slide with a toggle or toggles, which engage with said teeth in the forward motion of the wheel, but are thrown np automatically by the back motion,asrhere inafter described.

General Description.

In the drawings- A represents the main frame, and B B the drivingwheels of au ordinary mower or harvester.

One o r both of these wheels are provided with ordinary cam-teeth a a on the inside.

In any suitable manner in the frame is set the ordinaryslide O, which engages at one end with the camteeth, while at the other it is pressed back by a react- ,ing spring, b.

The end which engages with the teeth has a toggle, C', whibh turns up freely, butstiffens when turned down`in a horizontal position. By this means, when the driving-wheel goes forward the -slide reeiprocates or vibrates inand ont, but when the wheel goes backward the toggle turns up, as indicated in dotted lines, thus disengaging the action. lhi's arrangement of the toggle-slide enables me to dispense 'with the ordinary expensive ratchet-device in Vthe hubs of the. wheels of ordinary harvesters, and also enables me to dispense with the ordinary cog-gears that are used I, therefore, greatly reduce cost and friction, while a1 the same time I produce a more rapid action of the knives. If desired, both driving-whee1s may have the camteeth, and the slide maybe extended, and have a toggle at both ends to connect with both wheels, but in this ease the wheels would have to be fixed to a revolving axle. The operating end of the slide might also have a fork or double .bearing connecting witli the teeth above and below. Furthermore, the caml teeth might be on both sides of one drive-wheel, and two toggles be used acting on one slide. y

The toggle maybe made to fall by its own weight, or a. spring, d, may be used on top to hold it down.

On the under side of the machine is pvoted, at f,

aYrock-arm, G, which connects at one-'end with the slide O and at the other with pitxnan-rod H, by which means the motion is conveyed to the knives.

The use of the toggle, as before described, greatly facilitates the action of the machine, by obviating the employment of any disconnecting device attached to the wheels. The toggle acts instantly and automatically. f l

I am aware that cam-teeth have been used to give motion to a slide in other relations, and such, broadly, I do not claim; but

What I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement of the slide C, toggle C', spring b, and the connections with the cutter-bar and the driving-wheel, in the manner and for the purpose dev scribed.

In witness whereof I have hereunto signed my name in the presence of two subscribing witnesses.`

PRESTON A. TOBEY.

"itnessesz ALONZO TUCKER, J. S. BUCHANAN. 

